Question

Two identical glasses are filled to the same level with juice. a child then watches as the juice from one glass is poured into a taller, thinner glass. a child who is capable of concrete operational thought might say

Answer 1

He/she will say that both glasses held the same amount of liquid. By the concrete operational stage, the child has developed the ability to understand conservation, and knows that just because the shape or appearance changed doesn't mean the quantity of liquid changed.